Method of manufacturing deodorizing attachments for vacuum cleaners



W. J. CLEMENTS July 8, 1941.

METHOD OF MANUFACTURING DEODORIZING ATTACHMENTS FOR VACUUM CLEANERSFiled Nov. 17, 1939 A m 3 a,

m 010;. m W Wm ex 7.1? R. n% W vav 1c v Patented July 8, 1941 I STATS PCLEANERS William J. Clements, Chicago, Ill., assignor to ClementsMfg.00., Chicago, 111., a corporation of'lllinois Application November 17,1939, Serial No. 304,947

2 Claims. (Cl.113-120) v I -,ofthe-end portion 12,, The foraminous plateor My invention relates to an improvement in deodorizing attachments forvacuum cleaners.

One purpose is the provision of an improved deodorizing attachment whichshall be efficient in operation and cheap and elficient to manuiacture.

Another purpose is the provision of an improved method of assemblingsuch deodorizer.

Other purposes will appear from time to time in the course of thespecification and claims.

I illustrate my invention more or less diagrammatically in theaccompanying drawing wherein:

Fig. 1 is a side elevation of a vacuum cleaner, with parts in section;

Fig. 2 is a longitudinal axial section through my deodorizingattachment.

Fig. 3 is a section on the line 3-3 of Fig. 2; and

Fig. 4 is a sectional view illustrating the mode of assembling andsecuring the parts together.

Like parts are indicated by like symbols throughout the specificationand drawing.

Referring to the drawing, I generally indicates a vacuum cleaner, thedetails of which form no part of the present invention. It includes,however, an end portion 2 having a central passage 3, defined by agenerally tubular member 4, having an inward taper as at 5, and providedwith any suitable locking stop or lug 6.

The deodorizing attachment includes a main body portion 1, herein shownas generally cylindrical, and having at its outer end any suitablefilter or mesh or foraminous plate In, secured in the screw cap 8,apertured at 9.

1! indicates any suitable crystals or material to obtain the deodorizingefiect. I2 is a bottom member secured to the cylindrical body portion,in any suitable manner, as at l3. It has a central aperture t l. I5indicates a neck or connecting portion, slightly tapered as at IE, topenetrate and conform to the passage portion 3, of the vacuum cleanerend member 2. The tapered portion i6 is upset to provide a locking slotor depression having an entry l1 and an inclined portion 98. It will beunderstood that when the neck member I5 is inserted in the passagemember 4, as shown in Fig. 1, it is then rotated to obtain a positivelocking efieot in relation to the vacuum cleaner.

In assembling the device it will be observed that the neck portion l5,in its initial stage, is provided with an outwardly extendingcircumferential bend i9, and an inner or upper flange 2%] of generallycylindrical shape and conforming generally to the diameter of theaperture I4 filter 2|, initially of bulged or cup shape, is positionedwithin the member l5 and in alignment with the outwardly offset portionI9, the parts being initially in the position in which they are shown inFig. 4.

Any suitable die may be employed, including the cylindrical portion 22,adapted to support the foraminous member 2|, and an outer member 23 ofthe die sup-ports the neck member l5, as shown in Fig. 4. Any suitablepunch 24 may be employed, which preferably has a downwardly extendingportion 25 of reduced diameter. The diameter of the portion 25 issufiicient to permit it to penetrate within the portion 25 of the neck.

The punch 24 is centrally apertured at 26 to receive the stem 21 of theplunger pad 28, which engages the foraminous cup-shaped member 2| toforce its periphery into the groove in the'bead I 9. The plunger isthrust downwardly by the spring 29 and is retained in the punch 24 bythe pin 30 engaging in the slot 3|.

When the punch 24 is moved into operative position, it folds thecylindrical portion 20 outwardly over the upper face of the closureportion l2, and also compresses the offset portion [9, and at the sametime the pad 28 flattens out the cup-shaped foraminous plate 2!. Theresult of the downward movement of the punch 24 against the die 23 is tomove the parts into the position in which they are shown in Fig. 2, withthe member 20 firmly locked against the upper face of the portion l2,and the ofiset l9 firmly locked against the lower face. At the same timethe flattening of the bulged foraminous plate 2| causes it to moveoutwardly into the offset portion is, where it may be firmly gripped,and in any event cannot escape. The union between the parts is so closethat there is no relative rotation between the cylindrical body 1 andthe neck portion 20, and the cylindrical body I may be used as a handlefor applying or removing the unit as a whole from the vacuum cleaner.

It will be realized that whereas I have described and illustrated apractical and operative device, nevertheless many changes may be made inthe size, shape, number and disposition of parts without departing fromthe spirit of my invention. I therefore wish my description and drawingto be taken as in a broad sense illustrative or diagrammatic, ratherthan as limiting me to my precise showing.

I claim:

1. The method of assembling a sheet metal element which includesproviding a body portion having an apertured wall and a neck portionincluding a flange adapted initially to penetrate the aperture of saidwall, and an outwardly offset channel adapted to engage the wall and toreceive a filter member, positioning said neck portion and said bodyportion with said flange penetrating said aperture, and said channelengaging said wall, positioning a concavo-convex filter member withinsaid neck portion, with its edge in alignment with said channel, thediameter of said filter member being initially less than the diameter ofthe neck portion, and substantially simultaneously flattening saidfilter member and thereby extending its edge into said channel, andupsetting said flange and compressing said channel, and thereby at thesame time looking said filter member in relation to said neck portion,and locking said neck portion and filter member in relation to said bodyportion.

2. The method of assembling a sheet metal element which includesproviding a body portion having an apertured wall and a neck portionincluding a flange adapted initially to penetrate the aperture of saidwall, and an outwardly offset channel adapted to engage the wall and toreceive a disc, positioning said neck portion and said body portion withsaid flange penetrating said aperture, and said channel engaging saidwall, positioning a concave-convex foraminous disc within said neckportion, with its edge in alignment with said channel, the diameter ofsaid filter member being initially less than the diameter of the neckportion, and substantially simultaneously flattening said disc andthereby extending its edge into said channel, and upsetting said flangeand compressing said channel, and thereby at the same time locking saiddisc in relation to said neck portion, and locking said neck portion anddisc in relation to said body portion.

WILLIAM J. CLEMENTS.

